Clutch.



J. D. ENS.

134mm IIIIIIIIIIIIIIIIIIIIIIIIII 2' Patented 25, 1915.

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CLUTCH.

APPLICATION FILED JUNE 27. [912.

1 ,14Q 3Z, Patented May 25, 1915.

2 SHEETS-SHEET 2.

JOHAN ID'YKE ENS, OF HAGUE, SASKATCHEWAN, CANADA.

CLUTCH.

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Specification of Letters Patent.

Patentedlhiay25i915.

Application filed June 27, 1912. Serial No. 706,305.

To all whomit may concern Be it known that I, JoHAN DYKE ENS, of the village of Hague, in the Province of Saskatchewan, Canada, have invented certain new and useful Improvements in Clutches, of which the following is the specification.

My invention relates to an adjustable drive pulley which can be applied to any drive shaft and is particularly adapted for use with separating machines and the object of the invention is to supply a device applicable to a shaft and driven or received by a belt which will allow the driving action of the belt to be transmitted to the shaft or freed therefrom without throwing the belt, the action being effected by the manipulation of a lever.

It consists essentially in a supporting frame mounted on the drive shaft, complementary permanent and shiftable members located on the shaft within the frame, such members having coned ends, a hollow cylindrical shell fitting around the members and between the coned ends thereof, said shell having the ends tapered, disks adjoining the ends of the members and means for shifting the shiftable member on the shaft and retaining it in any shifted position, the parts being arranged and constructed as hereinafter more particularly described.

Figure 1 represents a side view of the device applied on the driving shaft of a separator. Fig. 2 is an enlarged detailed plan View of the device detached. Fig. 3 is a longitudinal sectional view through the same. Fig. 4 is an end view of a portion of the shifting device.

In the drawings like characters of reference indicate corresponding parts in each figure.

1 represents the front end of the ordinary separating machine and 2 the driving shaft of the separator. This shaft is usually supplied with a permanent pulley so that the separator can be driven directly by a belt from a traction engine. However, where such is the case the separator is oftentimes damaged on account of foreign material getting accidentally fed into it, which damage could be avoided if any means were supplied which would allow the attendant on the separator to stop the driving effect of the belt himself without having to call to the attendant on the traction engine to stop the engine.

My device is designed and applied so that the attendant on the separating machine can throw a lever and prevent the driving belt from rotating the drive shaft. Accordingly any foreign material getting into the separator would not be given time to do any damage as the lever could be shifted immediately it was noticed that foreign material was being fed into the machine.

With my device the ordinary pulley is eliminated and two complementary members 3 and t are placed on the shaft, said members having their ends oppositely coned at 5 and 6. The member 4 is fastened on the shaft permanently by a key 7 while the member 3 is free to slide on the same and both the members are supplied with similar equally spaced extending projections 8 fitting slidably one between the other. This allows the member 3 to be shifted longitudinally on the shaft but will not permit it to rotate without rotating the member 4.

9 is a hollow cylindrical shell fitting around the members and t and having the ends thereof coned out or tapered at 10 and 11 so as to fit the cone faces 5 and 6 of the members 3 and 4;. Ball or roller bearings 12 are inserted between the shell and the members so as to allow the shell to roll freely on the members when the member 3 is shifted as later explained.

13 and 14 are two disks located on the shaft 2 and countersunk slightly in the outer ends of the members 3 and 4:. The disks are grooved circumferentially to receive the balls 15 which ride also on the ends of the members 3 and 4 being held in by plates 16 and 17 secured to the outer ends of the members 3 and 4. The ball arrangement is simply to allow the members 3 and 4 to turn freely on the disks. The bearings 15 are of considerable value and the same effect would not be obtained by having the cone ended members contacting with the bearing 20 on the one side and the cam 25, on the other, as. will be apparent from the following. When the lever is shifted the thrust will be applied to the member 3 through the ball bearings 15. The instant the coned face of the said member jams the shield over against the coned face of the member 4 the shaft of course is rotated through the action of the key 7. The Very act of jamming the member 3 against the shield produces a thrust on the balls 15 on the left hand side of Fig. 8.' There is also an end thrust on the balls 15 on the right side as the jamming together of the coned faces has a tendency to thrust the shaft toward the bearing 20. The disks 13 and 14 will actually remain stationary when the shaft is rotating as they will be held by frictional contact with the members and 20, as previously explained.

18 is a rectangular frame carrying inner and outer end bearings 19 and 20'which receive the shaft, the bearings being provided with slots 21 receiving adjustingbolts 22 which allow the hearings to be shifted in respect to the frame, the bearing 20 normally bearing against the face of the disk 14 while the bearing 19 is supplied at its inner side with inclined faces 23 and 24' arranged concentrically to the shaft.

' 25 is a shifting member mounted freely on the shaft and interposed between the disk 13 and the bearing 19 and it is fitted with inclined faces 26 and 27 complementary to the faces 23 and 24. A lever 28 eX- tends from the shifting member and a quadrant 29 is carried by the bearing 19 held in position by the bolts 22. The lever is supplied with the usual hand latch 30 and detent 31, the detent operating over the quadrant.

32 represents the usual drive belt for the separator which belt in this instance passes around the shell 9. When the separator is being driven by the belt the lever has the position shown in Fig. 1 of the drawings. l/Vith' the lever in this position the shifting member is jammed over on the shaft by the inclined faces 23 and 24, and 26 and 27 against the face of the disk 13 with the result that'the member 3 is shifted on the shaft toward the member 4. The cone faces 5 and 6 and 10 and 11 of the shell and the members 3 and 4 respectively are consequently engaged with the result that as the belt drives it rotates the shell which in turn carries with it both the members 3 and 4. The member 4 rotates the shaft owing to the key and both the members at this time ride on the balls 15, the disk 14 being actually held stationary by frictional contact with the face of the bearings 20 while the disk 13'is held stationary by frictional constops.

tatio'n.

to throw the lever to the opposite position shown in Fig. 1 which action allows the shifting member 25 tomove away from the 'end of the'shell. The shell accordingly continues to be rotated by the pulley but rotates on the members 3 and 4. The shaft accordingly remains idle and the separator The frame 18 is held in position by short'arms 33 which can be attached in any suitable way to the body of the separator. 7

What I claim as my invention 1s; r c 1. A device of the type described, including a shaft, members, one fixed upon said'shaft, and

complementary cone'ended' the other slidable thereon, means for moving said slidable member with I respect to said. shaft, a perimetric member applied to, and independently rotatable of said cone-ended members, end-disks rotatably mounted upon said shaft and adjunctive of said cone-ended members, end-bearings receiving'said shaft, and bearing-balls interposed between said end-disks and said cone-ended members, said bearing-balls allowing of the rotation of the latter, and said perimetric member when said end-disks are frictionally engaged with said end-bearings, as under certain conditions.

2. A device of the type described, including a shaft, complemental cone-endedmemhers, one slidably mounted upon said shaft, and the, other keyed thereon, means for 1 shifting said slidable member with respect to said shaft, a perimetric member encompassing said cone-ended members, bearingballs intermediate of said cone-ended members, and'said perimetric member, end-bearingsfor said shaft, end-disks applied to said cone-ended members and receiving said shaft, one of said disks acting on a bear ing and the other on the actuating means,

and bearing-balls housed intermediate said end-disks and said cone-ended members, said perimetric member and said cone-ended members being adapted for independent ro- 3. A device of the type described, including a rotary shaft mounted upon end-bearings, complemental cone-ended members,one

mounted slidably upon said shaft, and the other keyed thereto, a perimetric member conforming to, and encompassing said coneended members, and independently rotaceiving at theirinn'er edges the peripherally grooved edges of said end-disks, bearing Signed at Winnipeg this 25th day of balls interposed intermediate said cone- March 1912. ended members, said end plates and said JOHAN DYKE ENS end-disks, a shifting member mounted upon I? said shaft, and in contact With an end-disk, In the presence of and means for the actuation and retention G. S. ROXBURGH, of said shifting member in place. R. FOSTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

